Bug#627554: xserver-xorg-video-radeon: HD 5750 3rd screen displays interesting psychedelic colour swirl pattern covering whole screen

[Tim Wootton <tim@tee-jay.demon.co.uk>]

On 22/05/11 00:06, Alex Deucher wrote:

> Not a bug.  Only 2 non-DP monitors are supported since there are only
> two plls.  If you want 3 or more monitors the rest have to be DP.  The
> fact that you can make it work with some fiddling is pure luck and is
> completely unsupported.  You end up with one of the plls driving two
> monitors which only works if both monitors have the same clock and you
> get the ordering right.

Switched HDMI for DP, so now running 2 x DVI and 1 x DP, I get exactly 
the same symptoms.

> Alex